Tire rim



Dec.

J. A. FLORO ET AL TIRE RIM Fil ed May 10, 1924 2 Sheets-Sheet 1 Dec.1924- 1,518,782

Jv A. FLORO ET AL TIRE RIM Filed May 10, 1924 2 Sheets-Sheet 2 Den. 9,192% its!) lsr rss P AT 1111 onion.

TIRE RIM.

Application filed May 10,

To all whomzt may concern:

Be it known that we, Jonrr A. Fnono and lLERMAN MCGARIEY7 citizens ottheUnited titates, residing at Ghristopher, in the county oi Fra-nlilin andState oi Illinois, have invented certainnew and useful Improvements inTire Rims; and we do hereby declare the following to he a lull, clear,and exact description of the invention, such as will en- .hle othersskilled in the artto which it pertains to make and use the same.

'ihis invention relates to improvements in motor vehicle wheels and moreparticularly to i .proved demountable tire rims. 't is well known toautomoloile users and cor vehicle mechanics, that it is very tiicult toplace a. tire on or remove a tire ironi the ordinary channel-shaped rim.This is due to the fact that the flanges at the sides t the channelextend outwardly beyond the bottom of the channel, and consequently inplacing a tire on the rim or removing a tire from the latter, it isnecessary to stretch the tire to such an extent that it will pass overone oi the flanges. Frfiorts have been made construct rims,- to overcomethis disadvantage, hut so far as we are informed,

.hese etlor's have not been in a practical di- Ihe primary object of thepresent invention is to provide a tire rim. formed of two sections, eachsection being a complete ring and means heing provided to detachahlyconnect these sections or rings.

Another object of the invention is to provide a tire rim splitcircumierentially into two ringdilre sections, and to connect thesesections by concealed joints, so that the join inn" elementsvvill notbeliahle to rust when wice is in use;

rnrther object of the invention is to sectional tire rim. with simple vemeans for holding the sections in assembled relation. other ohjectis toprovide a sectional tire improved means for preventrim from creepingcircumiercntially a wheel, such means being constructed so o aid indisconnecting the sections of cee ls.

1924. Serial No. 712,248.

scribed in detail, illustrated in the accompanying drawings, and moreparticularly pointed out in the appended claims.

Referring to the drawings:

Figure 1 is side view of the improved rim.

Fig. 2 is a transverse radial sectional view of the same taken on theline 22 of Fig. 4.

Fig. 3 is a similar sectional view taken on the line 8-3 of Fig. 4;.

Fig. 4 is an inner view partly in section viewed from the center oftherim.

Fig. 5 is a sectional perspective view of a portion of the locking ringforming part or the rim.

Fig. 6 is a similar view of a portion of the telly band or main part ofthe rim.

Fig. 7 is a detail perspective view illustrating the manner in which thelocking ring may be forced into or out of position.

in the drawings, 1 designates the major part of the rim which isprovided at one side with an outwardly extending annular flange 2adapted to engage the ordinary head at one side of a pneumatic tirecasing. As best shown in Fig. 6-, the inner portion of the part 1 is cutaway at 3 to provide an annular rabhet l which merges into a radiallydisposed annular shoulder 5. The major part or band is provided atspaced points with inwardly extending wedge shaped lugs 6 that arespaced from) the shoulder 5, for a purpose hereinafter de scribed. Eachof these lugs has its inner surface 7 flush with the inner surface 8 ofthe band 1 and one side edge of the lug is Flush with one side edge ofthe band.

The band .1 is also provided about-the same length as the side wall ofthe pocket 7, whereby when the head 8 is turned to a. predeterminedposition, the straight edge 10 of the locking head will be in the sameplane as the shoulder 53. 'lVhcn the headis turned out of this position,its curved edge -will project into the recess?) er locking purposes, ashereinafter described.

The band 1 is completed by what may he termed fulcrum lugs 11 whichfunction in with a substantially semi-cylmdri-al pocket 7 and having itsinner portion thickened as shown at 14, for a purpose 110w to be described. In this thickened portion, as best shown in Fig. 5, we providespaced pockets 15, there being the same number of pockets as there arelugs 6. Each of these pockets is cut from the outside of the ringtowards its center, and the pocket has its mouth 16 opening through theinner edge 17 of the,

The uncut portion of the ring adjacent each pocket, provides a wedgeshapednose 18 adapted to interlock with one of the lugs 6. The mouth 16of each pocket is of .a length circumferentially, equal to the length ofone of the lugs 6, so that the lugs 6 will enter the ockets when theband and ring are arrange coaxially side by side, and the ring has itsmouths 16 aligned with the lugs 6 of the band. The outer portion of thering is cut away to provide a rabbet 19 having a cylindrical surface 20and ah annular radial shoulder 21, and when the lockinglring is movedagainst the band 1, to

place the lugs 6 in the pockets 15, the surfaces 4; and 20 will slide onone another until the shoulders 5 and 17 are in close proximity to eachother, and then the ring 12 may be turned relatively to the band 1, sothat the lugs 6 will interlock with the noses 18.

The locking ring, is provided with the usual eyelets 22 through whichthe rim securing bolts pass, and when the band 1 and locking ring areassembled the aperture 23" in one of these eyelets, will align with thespace between the lugs 11. Consequently these lugs may function as afulcrum block, and an ordinary screw-driver 24 or a similar tool may bepassed between the lugs 11 into the aperture 23, and may then beutilized as a lever for moving-thc band and locking ring circmnierentially relatively to one another. VJhen such lever has been employedto the proper extent to bring the wedge surfaces of the lugs 6 and noses18 into tight engagement, a recess 25 in the thickened portion 14; ofthe locking ring, will be brought into alignment witlrthe pocket '7, andth n the screw-driver may be inserted in the Slot 26 of the locking head8, in order to turn the locking head into the position shown in Fig. 4:,where it will prevent the band and locking ring from being movedrelatively to one another.

It is preferred that the elements heretofore described be made of metal,but it is obvious that they may be formed of any suitable material, andit is apparent that the thickened portion 1 1 of'the locking ringenables the pockets 15 to be formed in the ring without weakening thelatter.

From the foregoing it is believed the con struction and manner ofassembling the parts. may be readily understood, and in order todismantle the band and ring, it may be stated that the locking head 8 isfirst turned to bring the straight edge 10 into the same plane asshoulder 5, and then the screw-driver or'the like may be insertedbetween the lugs 11 into the aperture 23, and forced toward one sideuntil the wedge surfaces of the parts 6 and 18 have been disengaged.Then when the lugs are again in register with the mouths 16 of thepockets, the locking ring .may be pulled outwardly away from the band 1,and the tire may be readily removed from the rim.

Vl hile we have disclosed the preferred embodiment of the invention, weare aware that various changes may be made in the details illustrated,without departing from the s irit of the invention as expressed in the caims.

What is claimed and desired to be socured by Letters-Patent is:

1. A demountable rim including a major band, a-minor band, and means forsecuring the bands against relative rotation, the major band having anannular rabbet in its inner side provided with a radial annular shoulderand'a cylindrical surface, spaced wedge shaped lugs extending inwardlyfrom said cylindrical surface, said nlinor band having an annular rabbetin its outer side provided with a radial annular shoulder and acylindrical surface adapted to respectively engage one side edge and thecylindrical. surface 011 the major hand, pockets interrupting thecylindrical surface of the minor band-and adapted to receive said lugs,the inner surface of the minor band being new vexrly curved transverselyfrom one side edge of the minor band to the inner face of the majorband.

2. A tire rim including a hand and a looking ring, each provided with anoutwardly extending tire engaging flange, bayonet joints detachablyconnecting said parts, fulcrum ln s extending inwardly from one of saidand an eyelet arranged on the other part in substantial alignment withthe lugs, in order to receive a lever employed in relatively rotatingsaid parts.

3. A tire rim including a band member and a locking member connectedtogether by bayonet joints, each of said members having an annularradial shoulder, said shoulders being arranged to be brought into closeproximity with each other when the members are connected together, eachof said members having a parti-circular pocket by said members arereleased to permit adapted to-be aligned with one another, and relativerotation of the same.

a rotatable locking head adapted to seat in In testimony whereof weaifix our signa- 10 said pockets and prevent relative rotation of tures.

the members, said locking head having a a I straight surface adaptedtobe brought into I JOHN A. FLORO.

alignment with one of said shoulders, where HERMAN MOCARLEY.

